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Company Profile

A Leading Colorado Springs Architecture, Interiors, and Planning Firm

Located in a renovated historic building in the heart of downtown Colorado Springs, RTA is comprised of a diverse pool of architects, architectural interns, designers, and technical support staff. Founded in 1975, RTA is lead by principals Randy Thorne, Perry Lewis, John Hoelscher, Doug Abernethy, Brian Calhoun, Stuart Coppedge, and Dave Magargal.


Our multi-disciplined staff features a high concentration of registered architects and includes several LEED accredited professionals. In addition to our core strength of architectural design for new construction, renovation, and adaptive re-use projects, RTA provides technical expertise in a broad range of related services, including:

     • Feasibility studies including site
       selection and comparative analysis
     • Master planning
     • Site planning
     • Facility programming 
     • Interior design
     • Environmental graphics, signage
       and way-finding